DEVELOPMENT OF TECHNIQUES FOR NON-IMPACT TELETYPEWRITER PRINTING. 21 JUNE - 20 SEPTEMBER 1957.

• Document Type: CREST
• Collection: General CIA Records
• Document Number (FOIA) /ESDN (CREST): CIA-RDP81-01043R002400130002-5
• Release Decision: RIPPUB
• Original Classification: U
• Document Page Count: 29
• Document Creation Date: December 27, 2016
• Document Release Date: October 28, 2013
• Sequence Number: 2
• Publication Date: April 10, 1958
• Content Type: REPORT

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STAT
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.his section contttins the
Table of Contents and a list-
ing of all charts and drawings
contained n the text and
Appendix of this report.
ANDERSON -NICHOLS & COh1PAN
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Phase Theoretical Investigation
Phase Experimentation, Design, and
Construction of Experimental
Model
SECTION III Abstract,.
5I.S.1T ON IV Publications, Lectures, Reports
and Conferences ?
ELECTRON 1C PO 0
General
MECHANICAL PORTIONS,
General 8
Stylus 8
Assembly, Matrix.. a a a ? ? 9
40-Comet Relay (Pririt-Position
Relay)
Conclus ons
Program for Next Interval
Identification of Key Technical
Personnel
& .;ompANy
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LIST OF ILLUSTRATIONS
IN APPENDIX
11
Figure
1
Block Diagram, Baud Converter, 5-Baud
Storage, and Synchronizing Units
Relay Stylus
Stylus Tip Subassembly
Outer Shell (Relay Stylus)
Spring
Stylus Contact Subassembly
Print Stylus
Outer Shell Print Stylus)
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PURPOSE
This section constitutes a statement of the purpose of
the contract, giving a description of the phases as set
forth in Signal Corps Technical Requirements No.SCL-1535,
12 March 19540 It is written in accordance with para-
graph 1,2.2.5 of Technical Requirements No. SCL-2101-F0
The purpose of the contract is to conduct studies to
determine the feasibility of developing a method of
teletypewriter printing utilizing a minimum of moving
parts and not depending upon the impact of a type face
to print. The aim of the overall Signal Corps program,
of which this contract is a small part, is to provide
a means for high speed teletypewriter transmission:
This contract represents a first step in the exploration
of possibility for providing high speed teletypewriter
operation utilizing non-impact printing means.
A description of the phases set forth in the technical
requirements and a description of the work conducted
under the first phase is presented as follows:
Phase I - Theoretical Investigation
The first phase of the contract was specified as a
theoretical investigation to be conducted for study of
possible approaches to and techniques for non-impact
teletypewriter printing. The purpose of Phase I,
Theoretical Investigations, was to provide results and
recommendations in the form of an evaluation report to
the Contracting Officer's representative, to allow
Intelligent selection of approaches or approach to be
followed in the conduct of Phase II. Design criteria
are:
ANDERSON - NICHOLS & COMPANY
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I. Reliability
2. Performance
3. Ease of Maintenance
4. Ease of Operation
5. Weight
6. Size
The program of Phase I culminated in the preparation
and submission of the evaluation report "Study of
Techniques for Non-Impact Teletypewriter Printing -
Phase I - First Quarterly Progress Report for Period
1 July 1954 through 31 December 1954%
Phase II - Experimentation, Design and Construction of
an----7---7511-7-7,Moeperemer
The main objective of Phase II is to develop an ex-
perimental model or models sufficiently to demonstrate
the principles of operation and determine the design
II
parameters necessary to the construction of a practical
Non-impact Page Printer? By direction, preliminary work
of Phase II was to commence with the investigation of
available electrosensitive papers and to investigate
various matrix approaches.
As set forth in the technical requirements, upon Qalantinn
by the Contracting Officer's technical repreplAntative of
the approach or approaches to be followed during Phase
the Contractor initiated a program of further study and
experimentation in an attempt to prove feasibility of
the approach or approaches through actual design and
construction of an operating experimental model. The
model will be designed to demonstrate basic principles
of operation and shall attempt to prove the practicality
of the approach or approaches. It is expected to indicate
design parameters for a practical, high speed, page
printer with the following characteristics:
1. Capable of reliability under all pertinent
service conditions.
2. Operable at a minimum rate of 100 characters
per second.
ANDERSON - NICHOLS & COMPANY
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Include provision for reading copy while
printing.
k. Provide copy that is at least as readable
as present commercial teletypewriter page
copy.
Provide copy or a duplicate copy that may be
used to prepare up to 50 duplicates by use
of one of the existing commercial processes.
Provide copy that will not smear under normal
handling and will retain readability for at
least six months.
Not require the use of any evacuated space
for the printing area.
Make provision for 76 print positions per line.
9. Make use of standard "Murray Style" or pica
10-point type, with provisions for either
standard or weather symbols.
10. Print six lines per vertical inch, and provide
standard carriage return feature. (Allowance
is made for use of a separate signal line
when carriage return is required.)
11. use of minimum number of moving parts, partic-
ularly use cif individual print heads.
12. Use no exposed hazardous voltages, radiation,
or hot surfaces. In addition, good practice
indicates that there should be no exposed
moving parts or toxic agents used.
In addition to the above characteristics, design con-
siderations should include provision for:
1. Ease of maintenance.
2. Ease of operation.
3. Minimum weight, size, initial cost, and
cost of copy.
ANDERSON NICHOLS 8c COMPANY
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In accordance with contract amendment dated 20 June
1956, the Contractor will devote effort to design,
preliminary development, and experimental construction
of a suitable input signal translation means to allow
use of standard 00-word per minute and 100-word per
minute teletype signals. In this way, the non-impact
teletypewriter experimental model will be equipped
for use as a high speed printer or for use as a
standard communications' printer.
During Phase II, it is intended to conduct development
so that the experimental model will contain as many
practical features as is possible and such that there
will be a minimum of additional engineering required
in reducing the design to a practical page printer
as embodied in a further development model.
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ANDERSON - NICHOLS & COMPANY
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4.
SECTION III
ABSTRACT
The styli are now the only items which are delaying
the program mechanically. Failure to properly clean
parts prior to assembly has resulted in a high reject
rate of the styli outer shells. Quantities of outer
shells now on hand are aufficient for the experimental
model. Pilot lots of relay and print styli have been
ordered from two suppliers so that if difficulties
are encountered one or the other ma4 have a successful
assembly technique. These pflot runs are expected to
be complete by mid-October when they will be incorporated
into a relay and print block for test.
Most of the electronic units have now been tested
as far as practical without having print-position relays
and print matrices available. Marginal performance
in some units has been strengthened by engineering
changes.
ANDERSON - NICHOLS & COMPANY
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SECTION Br
PUBLICATIONS LECTURES REPORTS & CONFERENCES
Conference
On 9 August 1957, Messrs. J. K. Cushman and Joseph
Maher of SCEZ visited Anderson-Nichols & Company to
view and discuss work on the subject contract. Our
report of that conference was forwarded to SCEL on
13 August 1957.
The meeting was concerned with progress to date and
proposed revision of scheduling in view of the delay
in receiving stylus outer shells. Sample outer shells
received and locally assembled into relay styli with
encouraging results were shown at the meeting. A
draft copy of a request to the contracting officer for
extension of the period of services and indication of
requirement for additional funds was discussed. ANCo
indicated there would probably be sufficient funds to
complete the Experimental Model assuming no excessive
costs for styli*
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ANDERSON NICHOLS & COMPANY
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SECTION V
FACTUAL DATA
This section provides information on all work accomp-
lished during the reporting period covered by this
report in accordance with paragraph 3.2.2.8 of Technical
Requirements No. SCL-2101-F.
ELECTRONIC PORTIONS
General
Work on the electronic portions of the Experimental
Model during this quarter has consisted of nearly full
time engineering effort in testing the electronics
and part time technician effort in wiring.
The cable connecting the electronic portions of the
printer has been completed and installed.
Non-functional testing has been completed on the
character selector, styli selector, upper and lower
case matrices, and the print thyratron unit. The
sequential trigger unit has been partially checked
functionally. Final tests of all these units must
wait until the print matrix and print-position relays
become available.
The Synchronizing Unit, 5-baud Storage Unit, and
Baud Converter Unit have been tested by introducing
an external signal and monitoring the circuit functions
on an oscilloscope. This work is 95% complete.
Marginal p f erformance o
Rowiu circtlits hAsx h"11 imprrivgbd
by a few engineering changes.
ANDERSON - NICHOLS 84 COMPANY
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The block diagram and theory of operation contained
in the Seventh Quarterly report (pages 7-9) are
applicable and will not be described in this report.
MECHANICAL PORTIONS
General
Fabrication of mechanical components has been completed
with the exception of styli outer shells. Of these,
there is a sufficient amount on hand to meet the minimum
requirements for one machine with additional shipments
being received daily,
Stylus
The production of outer shells was slower than anticipated.
The slow production was caused by a high rejection rate
resulting from failure to thoroughly clean the parts
of oil and chips prior to swaging. Had the supplier
departed from the common practice of using cutting oil
while cutting the tubing on automatic lathes, this
problem would never have occurred.
With the receipt of the first sizeable lots of both
outer shells, small orders for assembly of each of the
types of styli were placed with two suppliers. Since
the assembly problems will be similar for both typesp
one supplier will make print styli Fig. 8 while the
other assembles relay styli, Fig. 3. This will serve
to put a relay and print matrix ander test in the shortest
possible time while establishing a reliable source for
subsequent manufacture?
The relay stylus, Fig p 3, is assembled as follows. A
stylus tip subassembly, Fig. 41 is fabricated by
crimping a collar on a piece of straightened wireo The
subassembly is slipped into the relay stylus outer
ANDERSON NICHOLS & COMPANY
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shell, Fig. 5, until the collar is almost out of
sight. At this point the spring, Fig. 6, is threaded
over the stylus tip end and the group plishafi in untIl
a small portion of the spring remains visible. The
stylus contact assembly, Fig. 7, is threaded into
the spring and pushed into the shell until the spring
Is loaded to 3 grams. Now the end of the shell is
crimped to lock the pieces within. (It is easily
seen that bent wires can cause excess friction and
result in a faulty prel^ad The assembly ig
placed in a fixture and the stylus tip cut to he
correct length. After finishing the end of the wire
another fixture is used to locate the external collar
which positions the stylus in the relay,
The print stylus, Fig. 80 is assembled in the same
manner using the print stylus outer shell Fig. 9.
The fabricator of the relay stylus has completed his
tooling and tried assembling a few pieces. These were
not satisfactory. A minor adjustment in the tooling,
to reduce the deformation of collars, and better
straightening of the stylus wire should result in the
delivery of acceptable styli by the second week in
October.
The manufacturer of the print styli is on the point of
completing his tooling and has not tried assembling
styli as yet.
Matrix
New wire cores have been made; however no molding has
been done during this report period.
40-Contact Rela Print-Position Relay
Awaiting styli before being assembled.
ANDERSON - NICHOLS & COMPANY
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SUMMARY OF STATUS
Continued delays in the manufacture of styli outer
shells coupled with tooling time for assembling
complete styli have placed the program four weeks
behind the schedule as revised 6-21-57. It is
too early to predict whether any of this delay can
be reduced.
ANDERSON NICHOLS 8t COMPANY
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SECTION VI
CONCLUSIONS
Over optimism on the part of the suppliers has con-
tinually resulted in running behind schedule. The
fabrication of many iTeems requres a departure from
the normal every day method of doing things. Failure
to recognize this is reflected in the four to six
month over-run on the spring manufacture, the six
week delay in completing the outer shells because of
oil and dirt, and now the slight delay in assembling
styli, because of excess swaging pressures resulting
in distortion of parts. Manufacture is proceeding
but with more effort and time than has been anticipated.
Although engineering changes have been incorporated
into some units to improve on the marginal performance,
there is no substantial change to the circuitry and
the operation is unchanged from that described in
previous reports.
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PROGRAM FOR NEXT INTERVAL
Pilot lots of relay and print styli are expected to
be on hand by mid-October* While these pieces are
being inwporated into the relay and print matrix
for test, the balance of the styli will be put into
manufacture with completion expected by the end
of October. Relay and print block tests will be in
progress toward the end of October. Assuming no
additional difficulties in manufacture, full scale
tests should be in progress by the middle of the
next report period.
ANDERSON NICHOLS & COMPANY
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This section contains a print of the Task Planning
Chart and Figures #1 - Block Diagram, Non-Impact
Printer, #2 - Block Diagram, Baud Converter, 5 Baud
Storage, and Synchronizing Units, #3 - Relay Stylus,
#4 - Stylus Tip Subassembly, #5 - Outer Shell Malay
Stylus), #6 - Spring, #7 - Stylus Contact Subassembly,
#8 - Print Stylus, #9 - Outer Shell (Print Stylus).
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. -
-
ie
-CLEARPR!NT PAPER CO"
I. F ? r: ?
"CLEARPRINT PAPER CO"
Declassified in Part - Sanitized Copy Approved for Release @ 50-Yr 2013/10/28: CIA-RDP81-01043R002400130002-5